Comparison of flow rates measured from precordial dilution curves, simultaneous direct arterial dilution curves, and nearly simultaneous Fick determinations in 29 patients failed to indicate any difference in precision. Successive precordial determinations of flow rate were adequately reproducible. It is concluded that the precordial dilution method gives flow values comparable to those obtaine...

Establishment of rating curves are often required by the hydrologists for flow estimates in the streams, rivers etc. Measurement of discharge in a river is a time-consuming, expensive, and difficult process and the conventional approach of regression analysis of stage-discharge relation does not provide encouraging results especially during the floods. P

[1] Accurate lava flow unit thicknesses estimates are necessary to place constraints on volcanic flux estimates. We refine the technique of using the shape of crater size-frequency distribution (CSFD) curves to estimate the thickness of individual lunar mare flow units. We find that a characteristic knee often observed in CSFD curves is reasonably interpreted to represent the presence of two la...

I provide the theoretical basis for an error calculus for measurements of cerebral blood flow using a freely diffusible tracer substance such as xenon-133. The use of the error calculus is exemplified by a study of the effect on the error margins in measurements of gray matter blood flow from flow level, relative weight of the gray matter compartment, and use of the earliest parts of the cleara...

In this article we study Chen's flow of curves from theoretical and numerical perspectives. We investigate two settings: that closed immersed ω-circles, lines satisfying a cocompactness condition. each the settings our goal is to find geometric conditions allow us understand global behaviour flow: for cocompact case, condition straightforward argument largely standard. For case however, quite c...